Mark Doherty, DMD, is cofounder and CEO of D4 Practice Solutions, owner and CEO of Commonwealth Mobile Oral Health Services, and a partner of Southcoast Endodontics. He is an associate clinical instructor for the postgraduate endodontic residents at the Boston University Henry M. Goldman School of Dental Medicine (BUGSDM). A sixth-generation dentist, Dr. Doherty is a graduate of the University of Pennsylvania School of Dental Medicine. He completed his postdoctoral training at BUGSDM in endodontics and root canal therapy.